1. Use Google Takeout:

   • Go to Google Takeout (takeout.google.com) and log in with your Google account.
   • Select "Deselect All" and then scroll down to find and select "Mail" from the list.
   • Click on "All Mail data included," and choose specific labels or all mail if you want to backup everything.
   • Click on "Next" and customize the export settings if needed.
   • Choose the file format and delivery method (send a link via email, add to Drive, etc.).
   • Click on "Create Export" to start the backup process.

2. Forward Emails to Another Email Account:

   • Set up another email account (could be a secondary Gmail account or another provider).
   • Forward emails with attachments to this new account.
   • This way, you're essentially creating a copy of your emails in another location.

3. Use Email Clients:

   • Configure an email client (like Thunderbird or Outlook) with your Gmail account.
   • Download all emails to your local machine through the email client, including attachments.

4. Third-Party Backup Tools:

   • There are third-party tools available that specialize in Gmail backups. Some popular ones include:
     • ToolsBackup Gmail Backup Tool
     • Backupify
     • SysTools Gmail Backup

   Always ensure the tool you choose is reputable and follows best security practices.

5. Google Workspace (Formerly G Suite) Admin Tools:

   • If you're using Google Workspace, your administrator can use the Google Admin console to export user data, including Gmail emails.

Remember to consider the privacy and security of your data, especially if it contains sensitive information. Choose a method that aligns with your preferences and needs for backup frequency and accessibility.